Thomas blake



, @with tang gauw @frn Letters .Patent No. 82,790, dated October 6, 1868.

, I i i IMPROVEMENT IN BUSHING POB.- WHEELS.

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-To ALL WHOM 1T MAY OONOERN:

l Be it known that I, THOMAS BLAKE, of the city of Stockton, county oi' San Joaquin, State f`California,

have invented a new and useful manner of Bushing the Hubs of Wheels which are required to run loose upon their axles, for agricultural or other machinery;v and I do declare that the following is a full, clear, and exact description thereof,referencebeing had to the accompanying drawings, and to the letters'of reference thereon, making a part of this speci-cation, in whichl Figure 1 is a side view of a wheel and bushing, and

Figure 2 is a vertical section ofthe same.l v

To enable others to make and use my invention, I will proceed to describe its construction and operation.

The wheelfA, is constructed in any of the usual forms, with the exception of the eye, B B, in the hub or centre, whichis made of-an angular form, and tapering through the hub.

The bushing, C, is composed of iron, steel, glass, brass, or any ofthe usual substances usedfor similar pur, poses, an'd is of thc'same shape, and tapers externally as the eye of the hub of 'wheel into which it is driven, fitting sufficiently close, so as to be kept in its position'by the friction of its sides inl contact with the sides of the eye of the wheel, and prevented from turning in the hub by its angles. A I y The bushing, C, hasan eye, D, oif the proper size for the axle ppon which it is intended to run.

It is well known that wheels running' loose upon their axles are liable to soon become so worn in the eye Y as to become irregular in their motionand consequently useless.

The advantage that I claim for my invention is this, thatwhen the eyeot` the bushing becomes worn bythe friction np'on its axle, the bushing can bedriven out andreplaced hy a new one, and still using the same wheel, thereby effecting a great saving, as the bushing can be made at ,a trilling expense when compared with'cost of an entire4 new wheel. l

- What I claim as new, and wish to securehy Letters Patent, is`v The bushing C, provided with the cylindrical bore D, and having its external surface polygonal, as and' for the purpose described. K

v' THOMAS-BLAKE. Witnesses:

MELVILLE CorrLn, W. E. GREENE. 

